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Sounds like a clogged line from the tank to the canister. Possibly even a bad gas cap. Are there any codes stored in the computer? Is the light on? I do believe there is actually a check valve in the system as well. If I get some time tomorrow I'll do some research on it for ya.


Thanks, John, I'd appreciate that. I don't have a meter to read the codes, yet. There are no other symptoms or indicator lights. Just this rythmic buzz that lasts for about 1 second every 10 seconds. It is not all the time, but most of the time while the truck is parked. Thanks.

'02 Double cab, 5 speed swap, dual T-cases, FZJ80 SAS, E-lockers F/R, 37" MTR's
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